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Sindy and Ika are among the most memorable returning house guests for Season 5 of Big Brother Canada, which debuts Wednesday, March 15 on Global. If you're familiar with previous seasons of the show, the names Sindy and Ika will make you shiver, for different reasons.

Eight more house guests – four returnees and four newcomers – were revealed on Thursday, March 9. That makes a total of 16.

The returnees:

Sindy Nguyen, 27, from Huntsville, Ont., who annoyed everyone in Season 3 by introducing herself as “Sindy with an 'S,' ” and subsequently set the record for the most eviction votes ever received in a single eviction.

Ika Wong, 32, from Toronto, who is responsible for one of the most talked-about moments in the show's history, when she shredded her fellow Season 2 house guests’ letters from loved ones in exchange for $5,000.

Cassandra Shahinfar, 23, from Winnipeg, whose strong social game couldn't save her on a dreaded triple-eviction night in Season 4.